Removal of Particulate Matter in a Tubular Wet Electrostatic Precipitator Using a Water Collection Electrode

Jong-Ho Kim,Hyeok-Gyu Kim,Hee-Jung Yoo,You-Seong Hwang

doi:10.1100/2012/532354

Jong-Ho Kim, Hyeok-Gyu Kim + Show 2 more

Open Access

https://doi.org/10.1100/2012/532354

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Journal: TheScientificWorldJournal	Publication Date: Jan 1, 2012
Citations: 46	License type: CC BY 3.0

Affiliation: Hanseo University

Abstract

As one of the effective control devices of air pollutants, the wet electrostatic precipitator (ESP) is an effective technique to eliminate acid mist and fine particles that are re-entrained in a collection electrode. However, its collection efficiency can deteriorate, as its operation is subject to water-induced corrosion of the collection electrode. To overcome this drawback, we modified the wet ESP system with the installation of a PVC dust precipitator wherein water is supplied as a replacement of the collection electrode. With this modification, we were able to construct a compact wet ESP with a small specific collection area (SCA, 0.83 m2/(m3/min)) that can acquire a high collection efficiency of fine particles (99.7%).

Highlights

As the standard for ambient air quality and emission sources have gradually intensified, numerous strategies have been developed and introduced to air quality management [1,2,3]
In order to resolve the drawbacks of the preexisting wet electrostatic precipitator (ESP) technique, we developed a modified wet ESP in which a PVC tube is installed as a dust precipitator to facilitate the flow of water as an alternate electrode
A modified wet ESP was built with the installation of a PVC tube so that water can be used to replace a dust collecting electrode

Summary

Introduction

As the standard for ambient air quality and emission sources have gradually intensified, numerous strategies have been developed and introduced to air quality management [1,2,3]. In order to overcome such a limitation in the application of the electrostatic precipitator, several attempts were made to improve the collection efficiency of particles (e.g., increase in the size of the precipitator, the use of pulse energization, and so forth [12]). Such techniques as the agglomeration by electric field, acoustic field, and electrospray have been investigated as alternate approaches [9, 12, 13]. Among the available control techniques, the wet electrostatic precipitator (ESP) is a potent device that can facilitate the efficient collection of fine particles and acid aerosols. The presence of a dry area on the collection electrode can disrupt the corona discharge to induce a back corona [10, 11]

Experimental

Results and Discussion

Conclusion